When the petition is presented, the county commission shall set a time for a hearing on the petition, which shall not be less than four (4) nor more than eight (8) weeks from the date of presentation, unless extended by the county commission for good cause. A notice of the time of such hearing shall be published by the county clerk, at the direction of the commission, at least three (3) weeks before the time of such hearing, in a newspaper or newspapers as required in section 42-5204, Idaho Code.